[Guide] Unbricking Solution for LG Nitro HD (P930)

Introduction:
Sorry, I know my english is not so well as I want, but I tried to explain all steps in this guide for people who never flashed their devices before.


Required tools:
1) ADB: Get it from here - Android Developer SDK , and then specify the path (PATH) to the folder containing the ADB.
Alternate method: copy the folder ADB from the folder SuperOneClickv2.3.2_ShortFuse to the drive C:/ on the computer, and then specify the path (PATH) to the folder containing the ADB.
How to specify the path to the ADB:
My computer (right mouse button) -> Properties -> Advanced System Settings -> Environment Variables -> In the lower window find the line Path and double click on it -> At the end of the string "Value" add the complete path to the ADB (eg C:/ADB) and click OK (don't forget to add ";" before).
2) SuperOneClick: Link - Mirror1 - Mirror2
3) LG P930 drivers: Link - Mirror1 - Mirror2
4) KDZ_FW_UPD_EN: Link - Mirror1 - Mirror2
5) Small HTTP Server:
a) shttp3: Link - Mirror1 - Mirror2
b) www: Link - Mirror1 - Mirror2

Required files:
1) V10F_00.kdz: Link - Mirror1 - Mirror2
2) boot.img: Link - Mirror1 - Mirror2
3) recovery.img: Link - Mirror1 - Mirror2
4) firmware.img: Link - Mirror1 - Mirror2
5) baseband.img: Link - Mirror1 - Mirror2
6) system.img: Link - Mirror1 - Mirror2

So now we have everything we need to restore our system. It remains only to extract all the files and you can get to work.

The process of resuscitation:
1) Install the drivers from folder LG P930 drivers.
2) Install the B2CAppSetup from folder KDZ_FW_UPD_EN.
3) Install shttp3.exe on drive C:/, note "I agree with this license, and I accept all items", "Update entry in main menu" and "Add to startup".
4) Run the program http.exe, click the right mouse button on the top of the Small Server and select Server -> Settings...
5) Go to the tab HTTP, in the "TCP/IP port for HTTP server" change port 80 to port 9002 and at the top right click on OK.
6) Unpack content of the www.ziр in the folder C:/shttps/www.
It is important:
Small Server software must be running, or unbricking will not be possible.
7) Open with a notepad (as Administrator) file hosts, which is located in C:/Windows/System32/drivers/etc and at the end add the following:
127.0.0.1 csmg.lgmobile.com
Save and exit.
8) Switch the phone to Download mode:
Turn off the phone, if you have not turned off.
Disconnect the USB cable from the phone if connected.
Hold down Volume Up and connect the USB cable to the phone.
Hold Volume Up until the screen: Download mode.
9) Open the folder KDZ_FW_UPD_EN and run the program UpTestEX_mod2_marwin.exe
10) Click on the folder icon in the row "Select kdz file" and select the file V10F_00.kdz
11) Click on "CSE web upgrade test".
12) In the window that appears, click on "Upgrade Start".
13) In the next window that appears, you will be prompted to select country and language, which will use the program. Since few of us know Korean, change the language to English, and follow on.
14) The program will begin to flash update file V10F_00.kdz on your phone.
It is important:
If you notice that the software update stuck at 4%, close the program through Task Manager and go to step 5!
15) When the update reaches 90% of your phone will reboot. Do not do anything until the upgrade is finished completely!
It is important:
If you notice that the upgrade program generated an error at 93%, do not panic. Just forcibly restart the phone.
If you notice that the upgrade program stucked on 90% for a long time, just forcibly close the upgrade program and move on to getting root.
16) Phone revived, you can begin to get root.

Getting root:
So, your phone is officially revived the Korean language with Korean firmware by default.
Before proceeding, make sure that your phone is connected to a PC in PC Software mode.
1) A gesture from the bottom-up on the lock screen will take you to the master wizard (where everything is in Korean). Press the left button on the bottom of the screen and two seconds later your phone will "talk" to his native English. You can continue to follow the master wizard, but honestly, it's unnecessary. We just wanted to change the language.
2) Install the drivers on the PC from folder LG P930 drivers. After that, wait until the PC to install additional drivers.
3) Go to Settings -> Applications -> Development and turn on "USB debugging".
4) Run SuperOneClick.exe and click Root.
5) Wait for the completion of the root. Check in the phone that the program Superuser appears.
* If it appears, then we can begin to flash the original AT&T's images.
* If not, repeat the procedure for obtaining root.
It is important:
Be patient, sometimes it takes about 20 times to get root.
I strongly recommend to use SuperOneClick 2.3.2 version to get root! Version 2.3.3 for some reason doesn't work with our phone.

Restoring the original Nitro HD images:
1) Connect your phone to your PC in Mass Storage mode (select the type of connections Mass storage).
2) Copy to the root of the SD-card all 5 images (boot.img, recovery.img, firmware.img, baseband.img and system.img).
3) Upon completion of copying of images put the phone back into a PC Software mode and make sure USB debugging enabled.
4) On your PC go to Start -> Run -> write cmd and click OK.
5) In the window that appears, use the following commands are strictly in the order in which they are registered (otherwise, again, get a brick and will have to start from scratch):
6) Wait for the completion of the last command (it takes quite a long time) and forcibly turn off the phone.
7) At the same time hold down the Power button and Volume Down and wait for the screen: Factory reset.
8) Double-click on the power button, confirming our actions.
* Phone will start factory reset and will restart at the end.

Congratulations! Now your phone has an AT&T's operator firmware and root-rights.

Guys, I'm really happy to be a part of this great community, but I decided to move on. Thanks to all of you!

Success Story & [Guide]

I figured I would write up the steps I performed to get a 100% stock AT&T image working on my P930 LG Nitro HD since I couldn't get Machzelet "The process of resuscitation" steps to work for me. Kept getting the phone not connected error when using the UpTestEX_mod2_marwin.exe. Credit is due to all the folks information / files I used and I will not re-post the files so please give them thanks as I have when you download from the links they have given.

Downloaded Machzelets' (POST#1) Required tools (SuperOneClick: SuperOneClickv2.3.2_ShortFuse.zip & LG P930 drivers: LGP930.zip)
Downloaded Machzelets' (POST#1) Required files (Except for the V10F_00.kdz)
Downloaded amoamares' (Post #21) LG Flash Tool 1.3.77.21 + P930 DLL
Downloaded & Extracted amoamares' (Post #14) LGP930AT-01-V10j-310-410-FEB-26-2012.zip
Downloaded arsen4oos' file from thread http://xdaforums.com/showthread.php?t=1508612 (Post #4)

My system(Windows 7 64 bit & AT&T LG Nitro HD P930)

Steps:
1) Install all of the drivers from LGP930.zip from amoamares' (Post #21) & Install LG flash tool 1.3.77 from amoamares' (Post #21)
2) Overwrite the EXE file located in the default directory C:\LG\LGFlashTool with the one downloaded from arsen4oos' file from thread http://xdaforums.com/showthread.php?t=1508612 (Post #4)
3) Open the LG Flash Tool, it should not ask you for anything at the splash screen but load the tool and prompt you for the DLL and TOT file downloaded from amoamares' Posts, if not click the Icon that looks like gears.
4) Click ok and put your phone into Download mode(Warning: I don't know if this was just me but My phone would keep exiting the download mode, I figured this was because the battery was dead and the phone was not charging when in download mode so I ended up plugging it into the wall for an hour or so when it was off to recharge the battery)
5) Plug your phone in and put it into "download mode" (Volume Up and Power Button) Once new hardware found go into control panel and find your phones 'Com port' under Ports(COM & LPT)-> LGE AndroidNet USB Serial Port (COM#) and change it to port 41 (right click "properties->port settings>advance" )(dcmcc99s' (Post #1) http://xdaforums.com/showthread.php?t=1343915)
6) Click the icon that looks like the cable and make sure you put a check in port 1 on the right and click ok
7) Click the yellow arrow pointing to the right in to top of the LG Flash tool (You should now see "Ready" in the first cell top left in the main window)
8) If your phone doesn't start flashing on its own unplug and plug your cellphone back in and it should start flashing and show its progress. At around 80-90% it will say something about rebooting and your phone should reboot, leave it alone until the progress bar reaches 100% and goes green saying completed or success even when the phone comes up to the welcome screen.
9) Close out the LG flash too and put your phone into debug mode and make sure its set to PC mode.
10) Extract SuperOneClickv2.3.2_ShortFuse.zip and Run SuperOneClick.exe and root that sucker!!!! (Took me 2-3 attempts, and a few phone restarts in between of tries to get super one click progress to go past starting ADB server)
11) Once rooted put your phone into mass storage mode and copy all of the IMG files from Machzelets' (POST#1) Required files to your SD cards root directory
12) Put your phone back into PC mode and make sure your phone is in debug mode and open a command prompt window and navigate to where you extracted super one click (Thanks scott0 for pointing out simple is better but no need to cd.. twice to back up when you can change directory to the folder directly like this)

my instance looks like this And start issuing the following commands from Machzelets' (POST#1) (Re posted here to remove the spaces that were causing the commands to fail for me, but he still deserves credit so don't forget to thank him/her)
Note: One at a time until it finishes and the # sign shows in the console window, some take longer then others.
13) Once the last command is finished my phone was un responsive as Machzelets' (POST#1) implies so forcefully shut the phone down(I removed my battery)
14) Turn the phone back on in factory reset mode by pressing and holding the Volume Down and Power button, then hit the power button twice to confirm.

Congratulations your phone is now 99.999% stock (since its rooted....) If your crazy and wimp out of the root business because of one bad flash that bricked your phone I guess you could always un-root your phone with super one click and skip the next steps, but whats the point lol..

15-Infinity) Start reloading your apps and everything. personally I Installed Rom manager and re flashed CWM and restored to a previous backup and it WORKED!!

Have fun and don't fear bricking your phone again thanks to Machzelet, amoamare, arsen4oo and dcmcc99.

BeatByte said:

Wait, what exactly do I rename the kdz file to?

Click to expand...

Click to collapse

V10F_00.kdz

Good news! ... sort of.

After trying for 12 hours to flash V10F_00.kdz, I gave up.

I found V10i_00.kdz from here:

https://www.dropbox.com/sh/6v5jxci6mstt92a/hvFk6GAaxP/Unbrick/AT&T P930

It finally flashed! (Though it got stuck at 90something percetn)

Battery pull, and it booted!

Now I'm trying to get root so that I can install CWM again and restore CM9 backup...

Edit: couldn't root the V10i_00.kdz rom so I was forced to try flashing the V10F again. Decided to flash the one from the dropbox link and guess what, it WORKED. The file is the same size as the one posted in this guide on page 1.

HOWEVER, I'm starting to wonder if it worked because the file name is shorter. V10F_00.kdz vs "LG-SU640-V10F_00.kdz"